20734526 has 16 divisors (see below), whose sum is σ = 33276096. Its totient is φ = 9655296.

The previous prime is 20734517. The next prime is 20734531. The reversal of 20734526 is 62543702.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (2079756).

Almost surely, 2^20734526 is an apocalyptic number.

20734526 is a deficient number, since it is larger than the sum of its proper divisors (12541570).

20734526 is a wasteful number, since it uses less digits than its factorization.

20734526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20734526 is about 4553.5179806387. The cubic root of 20734526 is about 274.7249083796.

The spelling of 20734526 in words is "twenty million, seven hundred thirty-four thousand, five hundred twenty-six".